Musical instrument amplifier



FIG. 1 is a perspective front view of a musical instrument amplifiershowing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side being amirror image thereof; and,

FIG. 5 is a bottom plan view thereof.

The ornamental design for a musical instrument amplifier, as shown anddescribed.